Units Digits in Cube Numbers

Q.

Which of the following are the cubes of even numbers?
(i) 216 (ii) 729 (iii) 512 (iv) 3375 (v) 1000

Q. Find the unit's digit of the cube of 27.

1. 3
2. 4
3. 6
4. 7

Q.

The cube of an even natural number is

1. Odd number

2. Even number

3. None of the above

4. Negative even number

Q.

How can we find the cube root of a 7 , 8 or 9 digit number like 1906624 using estimation method?

Q.

Which is the most simplest and fastest way to find cube root? A shortcut

Q.

Write cubes of five natural numbers which are multiples of 3 and verify the following the cube of a natural number which is a multiple of 3 is a multiple of 27

Q. For a number ending with 2, the unit digit of its cube is equal to:

1. 8
2. 6
3. 4
4. 2

Q. Find the one’s digit of the cube of 53.

1. 3
2. 5
3. 7
4. 9

Q.

Which of the following are cubes of :

(i) an even number

(ii) an odd number

216, 729, 3375, 8000, 125, 343, 4096 and 9261.

Q.

Write the number of digits in the cube roots of 94818816 .

Q.

which of the following are cubes of even natural numbers?
216, 512, 729, 1000, 3375, 13824

Q. Find the cube root of 300763 by finding it’s units and tens digit.

1. 77
2. 76
3. 67
4. 57

Q.

___ is the units digit of the cube of the number whose unit digit is 7.

Q.

For a number ending with 7, the unit digit of its cube is equal to:

1. 6

2. 3

3. 7

4. 1

Q.

Which of the following are the cubes of odd numbers?
(i) 125 (ii) 343 (iii) 1728 (iv) 4096 (v) 9261

Q.

If the unit digit of a number is 8, the unit digit of the cube of the number will be

1. 8

2. 6

3. 4

4. 2

Q.

Question 2(v)

State True or False.
The cube of a two digit number may be a three digit number.

Q. Find the units digit of the cube root of 175616.

1. 5
2. 6
3. 3
4. 7

Q.

The digit in the units place in the cube of 298 is

1. 3n-1

2. 3n+1

3. 3n-2

4. 3n

Q.

Question 2(ii)

State True or False.
A perfect cube does not end with two zeroes.

Q. The three-digit number whose hundred's digit is the cube of its unit's digit and the ten's digit is the sum of unit's and hundred's digit is ___.

Q.

What is the units digit of the cube root of the number 17576?

1. 6

2. 2

3. 3

4. 4

Q.

What will be the unit digit of the cube of number 15625?

1. 5

2. 0

3. 3

4. 4

Q.

The unit digit of the cube root of the number 2197 is ____.

1. 9

2. 3

3. 1

4. 7

Q.

Question 7

Write the correct answer from the given four options.

The one's digit of the cube of 23 is

a) 6
b) 7
c) 3
d) 9

Q.

Question 77

State whether the following statement is true or false:

Cube of an even number is odd.

Q.

Which of the following are cubes of odd natural numbers?
125, 343, 1728, 4096, 32768, 6859

Q.

If square of x end in 9 then which digit does cube of x ends in

Q.

Question 2(i)

State True or False.
Cube of an odd number is even.

Q.

Question 48

Fill in the blanks to make the statements true.

Cube of a number ending in 7 will end in the digit ___